Wall cabinet



FIG. 1 is a top, front, and right side perspective view of a wall cabinet showing my new design;

FIG. 2 is an enlarged fragmentary top, front, and right side perspective view thereof; and,

FIG. 3 is a front elevational view thereof.

The broken line disclosure in the views is understood to represent portions of the article in which the claimed design is embodied, but which forms no part of the claimed design. 

The ornamental design for a wall cabinet, as shown and described. 